Individual neutrino masses as a function of Σmν for the two hierarchies (NH: plain line, IH dotted lines), under the assumptions given by Eqs. (1)–(3). The vertical dahed lines outline the minimal Σmν value allowed in each case (corresponding to one massless neutrino generation). The log vertical axis prevents from the difference between m1 and m2 to be resolved in IH.
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